9 research outputs found

    Facilitating Internet of Things on the Edge

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    The evolution of electronics and wireless technologies has entered a new era, the Internet of Things (IoT). Presently, IoT technologies influence the global market, bringing benefits in many areas, including healthcare, manufacturing, transportation, and entertainment. Modern IoT devices serve as a thin client with data processing performed in a remote computing node, such as a cloud server or a mobile edge compute unit. These computing units own significant resources that allow prompt data processing. The user experience for such an approach relies drastically on the availability and quality of the internet connection. In this case, if the internet connection is unavailable, the resulting operations of IoT applications can be completely disrupted. It is worth noting that emerging IoT applications are even more throughput demanding and latency-sensitive which makes communication networks a practical bottleneck for the service provisioning. This thesis aims to eliminate the limitations of wireless access, via the improvement of connectivity and throughput between the devices on the edge, as well as their network identification, which is fundamentally important for IoT service management. The introduction begins with a discussion on the emerging IoT applications and their demands. Subsequent chapters introduce scenarios of interest, describe the proposed solutions and provide selected performance evaluation results. Specifically, we start with research on the use of degraded memory chips for network identification of IoT devices as an alternative to conventional methods, such as IMEI; these methods are not vulnerable to tampering and cloning. Further, we introduce our contributions for improving connectivity and throughput among IoT devices on the edge in a case where the mobile network infrastructure is limited or totally unavailable. Finally, we conclude the introduction with a summary of the results achieved

    IEEE Access special section editorial: Mission critical public-safety communications: architectures, enabling technologies, and future applications

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    Disaster management organizations such as fire brigades, rescue teams, and emergency medical service providers have a high priority demand to communicate with each other and with the victims by using mission-critical voice and data communications [item 1) in the Appendix]. In recent years, public safety agencies and organizations have started planning to evolve their existing land mobile radio system (LMRS) with long-term evolution (LTE)-based public safety solutions which provides broadband, ubiquitous, and mission-critical voice and data services. LTE provides high bandwidth and low latency services to the customers using internet protocol-based LTE network. Since mission critical communication services have different demands and priorities for dynamically varying situations for disaster-hit areas, the architecture and the communication technologies of the existing LTE networks need to be upgraded with a system that has the capability to respond efficiently and in a timely manner during critical situations

    TCP Performance in 5G mmWave Systems with Dynamic Blockage

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    The next-generation 5G network is being tested although the specifications of 5G have not been formally defined. Researchers and industry expect that new generation of technology will come to the market much sooner than expected 2020 in this quickly changing world. It may seem as a long ways to go but time flies and so will 5G at speeds of 10 Gbps. Cisco provides IP Traffic Forecast and other data in charts that show traffic from wireless and mobile devices will account for more than 63 percent of total IP traffic by 2021. By that time, wired devices will account for 37 percent of IP traffic, while WLAN and mobile devices will account for 63 percent of IP traffic. In 2016, wired devices accounted for the majority of IP traffic at 51 percent~\cite{cisco2017forecast}. Majority of the devices will be wireless, so it causes much overhead to the networks and mobility of the users will make it even more dynamic. Because the networks are dynamic and we need to be sure that our data not only fast but also correctly delivered to the end point. TCP used in dynamic networks. TCP stands for Transmission Control Protocol and one of the the most widely spread protocols in the Internet. TCP guarantees the recipient will receive the packets in order. That is why it is used in dynamic networks where error correction is necessary. 5G will operate on ultra-high frequency millimeter wave spectrum. The most recent 802.11ad Wi-Fi standard operating at 60 GHz showed that the spectrum between microwave and infrared waves can be used for high-speed wireless communications. The spectrum between 30 GHz and 300 GHz has a large amount of available bandwidth. This gives mmWave communications a major advantage over the current LTE standard. The 3rd Generation Partnership Project (3GPP) posted 'Study on channel model for frequency spectrum above 6 GHz', 3GPP TR 38.900 version 14.2.0 Release 14, where model and evaluation the performance of physical layer techniques using the above-6GHz channel models. This document relates to the 3GPP evaluation methodology and covers the modeling of the physical layer of both Mobile Equipment and Access Network of 3GPP systems. This work targets the TCP performance in 5G mmWave networks with dynamic blockage represented by human bodies and cause additional fluctuations in the channel and signal level. To reduce prices and time of experiments based on mmWave techniques modeling can be used. To achieve that ns-3 was utilized as a tool of modeling and simulations

    Modeling Unreliable Operation of mmWave-Based Data Sessions in Mission-Critical PPDR Services

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    Public protection and disaster relief (PPDR) situations are becoming increasingly common due to the rapid urbanization of our society. Among these, harsh weather conditions and harmful human activity create challenges for reliable operation of mobile communication infrastructures, which calls for immediate action. The wireless networks of today may not be ready to accommodate emergency scenarios as they have not been optimized for PPDR contexts historically. In this paper, we first review the important use cases, challenges, and requirements in the context of next-generation mobile networking for PPDR applications. We argue that many emerging services may be supported by the novel communication technology operating in millimeter-wave spectrum. Against this background, we contribute a new analytical model to characterize session continuity and other service-level performance indicators in cases when the communication system is susceptible to sudden intermissions caused by emergency situations. © 2013 IEEE

    Modeling Unreliable Operation of mmWave-Based Data Sessions in Mission-Critical PPDR Services

    No full text
    Public protection and disaster relief (PPDR) situations are becoming increasingly common due to the rapid urbanization of our society. Among these, harsh weather conditions and harmful human activity create challenges for reliable operation of mobile communication infrastructures, which calls for immediate action. The wireless networks of today may not be ready to accommodate emergency scenarios as they have not been optimized for PPDR contexts historically. In this paper, we first review the important use cases, challenges, and requirements in the context of next-generation mobile networking for PPDR applications. We argue that many emerging services may be supported by the novel communication technology operating in millimeter-wave spectrum. Against this background, we contribute a new analytical model to characterize session continuity and other service-level performance indicators in cases when the communication system is susceptible to sudden intermissions caused by emergency situations. © 2013 IEEE

    Modeling Unreliable Operation of mmWave-based Data Sessions in Mission-Critical PPDR Services

    Get PDF
    Public protection and disaster relief (PPDR) situations are becoming increasingly common due to the rapid urbanization of our society. Among these, harsh weather conditions and harmful human activity create challenges for reliable operation of mobile communication infrastructures, which calls for immediate action. The wireless networks of today may not be ready to accommodate emergency scenarios as they have not been optimized for PPDR contexts historically. In this work, we first review the important use cases, challenges, and requirements in the context of next-generation mobile networking for PPDR applications. We argue that many emerging services may be supported by the novel communication technology operating in millimeter-wave (mmWave) spectrum. Against this background, we contribute a new analytical model to characterize session continuity and other service-level performance indicators in cases when the communication system is susceptible to sudden intermissions caused by emergency situations.publishedVersionPeer reviewe

    Building the Future Internet through FIRE

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    The Internet as we know it today is the result of a continuous activity for improving network communications, end user services, computational processes and also information technology infrastructures. The Internet has become a critical infrastructure for the human-being by offering complex networking services and end-user applications that all together have transformed all aspects, mainly economical, of our lives. Recently, with the advent of new paradigms and the progress in wireless technology, sensor networks and information systems and also the inexorable shift towards everything connected paradigm, first as known as the Internet of Things and lately envisioning into the Internet of Everything, a data-driven society has been created. In a data-driven society, productivity, knowledge, and experience are dependent on increasingly open, dynamic, interdependent and complex Internet services. The challenge for the Internet of the Future design is to build robust enabling technologies, implement and deploy adaptive systems, to create business opportunities considering increasing uncertainties and emergent systemic behaviors where humans and machines seamlessly cooperate

    Building the Future Internet through FIRE

    Get PDF
    The Internet as we know it today is the result of a continuous activity for improving network communications, end user services, computational processes and also information technology infrastructures. The Internet has become a critical infrastructure for the human-being by offering complex networking services and end-user applications that all together have transformed all aspects, mainly economical, of our lives. Recently, with the advent of new paradigms and the progress in wireless technology, sensor networks and information systems and also the inexorable shift towards everything connected paradigm, first as known as the Internet of Things and lately envisioning into the Internet of Everything, a data-driven society has been created. In a data-driven society, productivity, knowledge, and experience are dependent on increasingly open, dynamic, interdependent and complex Internet services. The challenge for the Internet of the Future design is to build robust enabling technologies, implement and deploy adaptive systems, to create business opportunities considering increasing uncertainties and emergent systemic behaviors where humans and machines seamlessly cooperate
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